This forum contains a lot of electrical expertise, including automotive electrical. So I'm going to ask this question here in the hopes of getting informed answers. I've searched Google and Jeep forums extensively and have been getting conflicting info about this for years.
My 99 Jeep Cherokee XJ and 97 Buick Park Ave are older cars that orignally came with flooded batteries. Is it a good upgrade, or a bad idea, to replace their G34 flooded battery an G34 AGM Odyssey battery? If it matters, Odyssey use pure lead for the plates.
Elsewhere on the Web advice is conflicting and I have no idea who to believe. Some says it's fine. Some say it's an upgrade. Some say my old school alternator will overcharge AGM batteries and shorten battery life. Some say it will under charge. Some say it's fine. Some say AGM would be an improvement for me.
What's the truth here?
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Edited in Later: I just found the following at Odyssey battery website, which may be relevant.
The below is part of Oddysey's recommendations for using a battery charger with their AGM batteries.
Make sure the charge voltage at the battery terminals does not
exceed 14.0V (charge from battery charger).
A fully charged ODYSSEY battery will
read 12.84V, which verifies a full charge.
Is 14V the max my Jeep or Buick alternators are likely to put out? If so, I'm guessing it's OK to use an Odyssey AGM battery in those cars. But I don't know for sure. So advice still appreciated.
My 99 Jeep Cherokee XJ and 97 Buick Park Ave are older cars that orignally came with flooded batteries. Is it a good upgrade, or a bad idea, to replace their G34 flooded battery an G34 AGM Odyssey battery? If it matters, Odyssey use pure lead for the plates.
Elsewhere on the Web advice is conflicting and I have no idea who to believe. Some says it's fine. Some say it's an upgrade. Some say my old school alternator will overcharge AGM batteries and shorten battery life. Some say it will under charge. Some say it's fine. Some say AGM would be an improvement for me.
What's the truth here?
===
Edited in Later: I just found the following at Odyssey battery website, which may be relevant.
The below is part of Oddysey's recommendations for using a battery charger with their AGM batteries.
Make sure the charge voltage at the battery terminals does not
exceed 14.0V (charge from battery charger).
A fully charged ODYSSEY battery will
read 12.84V, which verifies a full charge.
Is 14V the max my Jeep or Buick alternators are likely to put out? If so, I'm guessing it's OK to use an Odyssey AGM battery in those cars. But I don't know for sure. So advice still appreciated.
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